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1. 发明授权

US6049559A Method of refining metal to high degree of purity and high-frequency vacuum induction melting apparatus 有权
标题翻译：精炼金属高纯度方法和高频真空感应熔炼装置
公开(公告)号：US6049559A
公开(公告)日：2000-04-11
申请号：US298899
申请日：1999-04-26
申请人： Kenji Abiko , Hitoshi Kawano , Masanori Tsuda , Yasuhiro Nakai , Tadahito Nakajima , Masanobu Harada , Yoshihiro Ashino
发明人： Kenji Abiko , Hitoshi Kawano , Masanori Tsuda , Yasuhiro Nakai , Tadahito Nakajima , Masanobu Harada , Yoshihiro Ashino
IPC分类号： C21C5/52 , C21C7/10 , C22B9/00 , C22B9/04 , F27B14/04 , F27B14/06 , F27B17/00 , F27D7/06 , F27D9/00 , F27D19/00
CPC分类号： F27B14/063 , C22B9/003 , C22B9/04 , F27B14/04 , F27B17/00 , F27D9/00 , C21C5/5241 , C21C7/10 , F27B2014/045 , F27D2007/066 , F27D2009/0013 , F27D2009/0083 , F27D2019/0003 , Y02P10/216 , Y02P10/253
摘要： A method of refining metal to be processed to a high degree of purity by heat-melting the metal in a melting furnace in the form of a metal crucible placed in a vacuum vessel. The method includes evacuating prior to melting, preheating the inside of the entire vacuum atmosphere including the inner wall surface of the vacuum vessel, component parts inside the vessel and the like in order to keep the total pressure within the vessel at 1.times.10.sup.-8 Torr or lower, and effecting high frequency induction heating while controlling the partial pressure of each of O.sub.2, H.sub.2, CO in the atmosphere inside the vessel. Further, the vacuum vessel, the metal crucible and an induction heating coil attached to the crucible, each of which has double jacket structure, are heated or cooled by supplying circulating heating or cooling water in a water-passage space of each of the vacuum vessel, the metal crucible and the induction heating coil, so that the inside of the melting furnace is baked.
摘要翻译：通过将熔融炉中的金属以放置在真空容器中的金属坩埚的形式进行热熔融来精炼待处理的高纯度金属的方法。该方法包括在熔化之前抽真空，预热包括真空容器的内壁表面，容器内部的组成部分等的整个真空气氛的内部，以便将容器内的总压力保持在1×10 -8乇或降低并实现高频感应加热，同时控制容器内的气氛中的各种O2，H2，CO的分压。此外，通过在每个真空容器的水通道空间中供应循环加热或冷却水，将具有双层护套结构的安装在坩埚上的真空容器，金属坩埚和感应加热线圈加热或冷却，金属坩埚和感应加热线圈，使得熔炉内部被烘烤。

2. 发明授权

US5892790A Cold crucible induction furnace 失效
标题翻译：冷坩埚感应炉
公开(公告)号：US5892790A
公开(公告)日：1999-04-06
申请号：US939652
申请日：1997-09-29
申请人： Kenji Abiko , Hitoshi Kawano , Masanori Tsuda , Tadahito Nakajima
发明人： Kenji Abiko , Hitoshi Kawano , Masanori Tsuda , Tadahito Nakajima
IPC分类号： F27B14/06 , H05B6/24 , H05B6/32 , H05B5/16
CPC分类号： H05B6/32 , F27B14/063 , H05B6/24
摘要： A cold crucible induction melting furnace is provided with a plurality of segments separated by a plurality of slits that surround a bottom member which together form the melting chamber. Each lower end of each segment is overlapped with and spaced from a short part of a vertically extending side wall of the bottom member so as to form a horizontal gap there between. A radially and outwardly extending flange protrudes from the bottom member side wall below each segment lower end to form a lower gap there between. An induction coil is disposed around and spaced from an outer face of the segments with a lower end adjacent to each of the lower segment ends and an upper end adjacent to an upper part of each segment that is in turn connected with an adjacent upper segment part to form a short circuited part. The radial thickness of each segment from the upper end of the coil to the lower end of the segments is the same and the magnetic flux generated by the induction coil passing through the lower gap and the horizontal gap provides increased magnetic flux density at least adjacent to the region adjacent to the bottom member and the lower ends of the segments.
摘要翻译：冷坩埚感应熔炼炉设置有多个由多个狭缝隔开的段，所述多个狭缝围绕底部构件，所述底部构件一起形成熔化室。每个段的每个下端与底部构件的垂直延伸的侧壁的短部分重叠并间隔开，从而在其之间形成水平间隙。径向和向外延伸的凸缘从每个段下端下方的底部构件侧壁突出，以在其之间形成较小间隙。一个感应线圈设置在该片段的外表面周围并与该片段的外表面间隔开，并具有与每个下段末端相邻的下端，以及与每个片段的上部相邻的上端，该上端又与相邻的上片段连接形成短路部分。从线圈的上端到段的下端的每个段的径向厚度是相同的，并且由感应线圈产生的通过下间隙和水平间隙的磁通量提供至少相邻的线圈的增加的磁通密度邻近底部构件的区域和段的下端。

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